Exam 7: Heat Transfer and Change of Phase

To say that evaporation is a cooling process is to say that the

Coastal winds shift from night to day due to

A mixture of light and heavy molecules make up a sample of gas. The temperature of the gas is constant, which means all the molecules have the same average

Melting and freezing are both

A star that is twice as hot as another has twice the

To say you can never change only one thing means that when you change something,

Boiling and freezing can occur at the same time when water is subjected to

If air were a better conductor than it is, nighttimes on Earth would be

When bringing water to a boil in the mountains, the time needed to reach the boiling point is

An researcher discovers a harmless and tasteless salt, which, when added to water changes its boiling point. The market value for this salt will be best if the salt

Put a saucer of water on your table. A process that occurs in the saucer is

Write a short paragraph distinguishing between conduction and convection. Give two examples of each.

Increased air pressure on the surface of hot water tends to

In a gaseous mixture of hydrogen and oxygen, the molecules having the greatest average kinetic energy are

In the mountains, water boils at

The Sun's radiant energy is composed of shorter wavelengths than the Earth's because the Sun

Warm air rises because faster moving molecules tend to move to regions of less

Convection currents in the air near a seashore are produced by

At the same temperature, which move with the greater speed in a gas?

The process of convection occurs in